Cardio & Core :Target your core muscles using variations of familiar moves, while increasing cardio endurance by adding interval training exercises. Registration and a signed Physical Activity Waiver is required for each previously unattended class (go to lifewithcancer.org and hover over the "Register for a Class" Tab. Click on the third item down (Class Forms, then physical-activity-waiver-fill-in). Participants who are more than 2 years out of completing active treatment (chemotherapy, radiation, surgery, targeted therapies, and immunotherapies) are encouraged to consider making a donation of $5 per class. If you cannot attend a class/group for which you are registered, CANCEL your registration as soon as possible by calling 703.698.2526; this will allow another person to attend.